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Expired Canadian patentCanada

Detecting arrangement and method for a magnetic gripper device

CA 2619740 C · Owner: Delaval Holding Ab · Inventors: Sjoeblom, Krister

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Abstract From the Canadian patent

A detecting arrangement for a magnetic gripper device (3) mountable on a robot arm (10) of a milking robot (2) provided for automatically attaching teat cups (5) to the teats of a milking animal, wherein the magnetic gripper device is adapted for gripping teat cups made of or comprising a magnetic material and comprises a primary coil (31) feedable with a current and a core (33) of a magnetic material arranged at least partly within the primary coil. The detecting arrangement comprises means (41 43; 43; 53) for repetitively , sensing a magnetic field an inductance, or a change thereof, as caused by a teat cup (5) when being present at, or gripped by the magnetic gripper device , (3); …

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed August 29, 2006 and granted April 8, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 29, 2026.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 29, 2006
GrantedApril 8, 2014
Term endedAugust 29, 2026
Patent numberCA 2619740 C
Classification (IPC)A01J5/01 +2 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedAug 29, 2006Patent grantedApril 8, 2014Term endedAug 29, 2026

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.